Stemcor Corporation
32Patents
0Active
32Granted
38Portfolio score
Filing activity: Jun 8, 1983 → Jul 5, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4898367A | Dispersing gas into molten metal | Chemistry; Metallurgy | 129 | Expired |
| US4739974A | Mobile holding furnace having metering pump | Mechanical Engineering; Lighting; Heating | 110 | Expired |
| US4692418A | Sintered silicon carbide/carbon composite ceramic body having fine microstructure | Chemistry; Metallurgy | 101 | Expired |
| US4863700A | Monolithic catalytic converter mounting arrangement | Emerging Cross-Sectional Technologies | 67 | Expired |
| US4868142A | Method of manufacturing a molten metal-resistant ceramic fiber composition | Chemistry; Metallurgy | 40 | Expired |
| US4756895A | Hexagonal silicon carbide platelets and preforms and methods for making and using same | Chemistry; Metallurgy | 28 | Expired |
| US4871108A | Silicon carbide-to-metal joint and method of making same | Chemistry; Metallurgy | 25 | Expired |
| US4730239A | Double layer capacitors with polymeric electrolyte | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4701427A | Sintered silicon carbide ceramic body of high electrical resistivity | Electricity | 20 | Expired |
| US4764261A | Method of making improved photovoltaic heterojunction structures | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4822679A | Spray-applied ceramic fiber insulation | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4981665A | Hexagonal silicon carbide platelets and preforms and methods for making and using same | Chemistry; Metallurgy | 19 | Expired |
| US4795673A | Composite material of discontinuous silicon carbide particles and continuous silicon matrix and method of producing same | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5194407A | Molten metal-resistant ceramic fiber-containing composition | Chemistry; Metallurgy | 19 | Expired |
| US4772335A | Photovoltaic device responsive to ultraviolet radiation | Electricity | 19 | Expired |
| US4964993A | Multiple-use molten metal filters | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5202105A | Method for making hexagonal silicon carbide platelets with the addition of a growth additive | Chemistry; Metallurgy | 13 | Expired |
| US4785191A | Interconnected array of photosensors for simultaneously sensing light intensities at each of a number of locations | Electricity | 13 | Expired |
| US4690790A | Silicon nitride/silicon carbide composition and articles thereof | Chemistry; Metallurgy | 10 | Expired |
| US4850171A | Modular furnace lining and hardware system therefor | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4803822A | Modular furnace lining and hardware system therefor | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4791077A | Near net shape fused cast refractories and process for their manufacture by rapid melting/controlled rapid cooling | Chemistry; Metallurgy | 7 | Expired |
| US4910412A | Light biased photoresponsive array | Electricity | 7 | Expired |
| US4749615A | Semiconductor dopant source | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4695294A | Vibratory grinding of silicon carbide | Performing Operations; Transporting | 6 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.